Windows 7 start bar disappearing

I've read around saying most cases you need to update Video Drivers. Since I'm on a Mac with Windows 7 in bootcamp it's not that simple, I think? Should I just put in Mac cd to install drivers again or any method to fix a disappearing Windows 7 start bar in bootcamp? It happens every time I boot into Windows now.

BigHungry04 said:

See if there are Windows 7 drivers for your video card from the manufacturer for instance either ATI or Nvidia. That may fix the issue.

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Search for NVIDIA GeForce 9400M.. Mac drivers or Windows drivers?

Well, I did it and still happening. It appears to be happening when my computer goes to sleep. (I think?)