Problem : folder closing automatically, keyboard icon blinking

Hello,

It's the second time I'm having this issue and it really screw things up. The most visible sympton is at the bottom right of the screen where the little icon keyboard is, net to the langage (me "FR" as "French). Well for some reason it starts to blink. And then I can't do things right. The start menu doesn't stay open, it closes automatically. The preview images when you have many windows open from a program close themselves before I can select any. And littme annoying stuff. And sometimes, it's like all the screen is blinking, in Firefox. Other odd behavior : the cursor unfocus from pages while it blinks, if you want to go down on a page, well you have to click again the page to be able to control. Sometimes it's all the time, you can't even scroll to a document or a web page...

I think last time I solved this problem by getting to an older version of windows, it was months ago. Now it didn't work. I tried also to modify all the usb options (disable, etc) it didn't work.

Sometimes it's more apparent than others which is very strange.

I'm running windows 7 x64. Does anyone knows what it could be ?

Well, I didn't try but the odd thing would be it arranges the problem, even if you never know of course. Because that problem already happened to me, and did go away. I'm not sure how, but it had to do with a going back to a older version of windows I think.

Sorry for bump but it's getting a bit out of control. Everything closes and open I don't know what the hell it is. It's not that often, but it happens. I have a pretty good antivirus opened up all the time. It doesn't seem like a virus. But last detail, it keeps doing that even when I take the keyboard off. So it mustn't be the keyboard.