Weird touchpad issue

I have recently installed Windows 7 through Parallels and whenever I launch a game I have to double tap to do a single click.
In the os however, tap to click works just fine, scrolling and secondary click also work.
I just can't figure it out... I've tried turning "Smart Mouse" on and off but the issue isn't resolved.

Any ideas?

Edit: I can't install windows through boot camp because it fails to partition the drive.
I tried running disk utility with repai permisions & verify disk, tried shrinking the partition with 50 gb out of 200 gb free but all failed... so parallels is my only option except saving everithing and reinstalling, plus, it's easier to switch from osx to windows so I'll stick with parallels.

Do you have the Parallels tools installed ?

Do you have a USB mouse you can try to see if it's the touchpad that's at fault?

mrplow said:

Do you have the Parallels tools installed ?

Do you have a USB mouse you can try to see if it's the touchpad that's at fault?

Click to expand...

With a usb mouse it works fine, the touchpad is the problem.
I don't think I have Parallels tools, it's not in the applications folder.

Edit: Disregard the last sentence, I uninstalled parallels tools and reinstalled them.
I'll check if the issue is fixed.