My problem seems to be a bit different. My taskbar disappears, not hides, when the computer goes to sleep and the screen looks distorted about the # of pixels of the taskbar. My workaround is to kill explorer.exe proces with taskmgr and relaunch explorer.exe and the bar is fixed and the desktop goes back to the correct view.
Seems that "disable the screen saver" is a workaround, not a fix as the screen saver should work. The screen saver I have is windows "blank". I am trying the SFC fix to see if that helps and checking the video driver forums to see if they have a fix.