I'm glad someone replied.
Well I also posted the same issue on dell's support forum but no reply yet. I thought it's relevant to the graphics so I wanted to post the issue here aswell.
Can you please tell me more about what you think might be causing this? I can tell that when i lag/spike on the laptop, while i'm playing warcraft online, people tell me that they can see me lag for a second.
So that made me think maybe not just a graphical issue...But then i can hear background music running smoothly even when i get these spikes.
It is very difficult to say what is the cause without having the system to debug. The sound is probably smooth due to buffering. The "spiking" could be anything from a HW issue to malware running on your system. Do you have anti virus sw running? Is it up to date? Can you do a full system scan of all files? Do the scan in when booted into Safe Mode. That may be a good place to start.
Thanks for the suggestion Robert.
Fact is I have tried Kaspersky fresh updated and even Avast antivirus. but I didnt find a single worm in the system.
I have to agree to the Music buffering part you mentioned. Is it like a small song is all copied to the ram? I'm asking just to somehow find out whether its software related or some hardware related issue. I'll try other graphical applications to check if it comes with load or with textures of different kind.
Another guy on my post on the dell forum says he has the same problem - read bellow -
[quote] I think I have the same problem with an Inspiron 1764. Every once in awhile while I am moving the mouse the system will freeze for 2-4 seconds. All video/motion will freeze but sound may continue to play. The processor does not spike during this, and in fact may spike downwards (as if something is preventing it from doing it's tasks during the brief spike).
I can actually reproduce the freezing by moving my mouse repeatedly over a window in Paint.NET and the freezing will reoccur every 20 seconds or so. Note that the freezing also occurs periodically with other programs, and even once or twice while using Aero preview to switch between explorer windows, so it's not a problem with that program specifically. It doesn't matter whether I'm using a mouse or the touchpad, the freezing happens either way.
I am running Bios A06, and have downloaded updated chipset and video drivers.[/quote]
It has something to do with the FADE IN / FADE OUT. Like he says he can reproduce the freeze by hovering the mouse over a small windows inside PAINT which actually fades in and fades out with a mouse hover. Same in aero preview, and when hovering over a DOCK.
And one other thing i noticed was that the guy who has the same problem also has INTEL integrated graphical memory.
well, okay but i think i have a lead on this issue.
Hovering over RADIO buttons/CHECK boxes will cause the same freezing.
I installed a new game(heroes of newerth) that is heavier than warcraf (the one that freezes), and it runs completly smooth on max settings.
Now, the only different i find between these two games is that, this new game was asking for d3dx9_40.dll.
So it looks like this issue is relevant to a specific graphics engine.
that is - the windows fade-in/fade-out engine or the default graphics engine in windows7.
I wish the dell support would reply robert. They dont seem concerned and i feel its a problem with intels drivers. So I just wish you reply for the last time if you dont mind. I'm sure the above few points can make you come up with some ideas.
You can try the latest Intel Graphics Drivers available here: http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProdId=2996&DwnldID=18806
However, if you have an OEM (Dell) customized driver on your system this driver will not overwrite it by default. That is by design to protect the OEM customizations. If you are willing to take the risk and loose any graphics customizations for your system you can install the Intel driver by using the have disk method. I would recommend saving a restore point before proceeding so you can revert back to previous settings if you are not satisfied with the results. See this technical document for additional information on this procedure. http://www.intel.com/support/graphics/sb/CS-022355.htm