Winscp loads, runs but is not accessable.

I installed the newest beta and was using it with no problem. I am running Win7 Ultimate 64bit. Several nights ago I clicked on the icon and it did not run. A check with alt/tab showed it running as did the taskmgr. I could not access it. I uninstalled the beta and installed the current version.. Same deal.. runs but can't get to it.. like it is running in "ghost" mode! -- Doug