Solidworks launches behind other windows

Solidworks has suddenly gotten shy. If I have other programs running and launch Solidworks, it opens behind all the other windows. I have to click on Solidworks in the Windows task bar, or hit alt-tab, to bring Solidworks forward. I've never seen this behavior before with Solidworks or any other program.

I'm running SW 2011 on Windows XP. Any ideas why this is happening? I haven't changed anything on my computer.

Not a big problem, just another Solidworks annoyance.

SolidworksUser Interface