The wallet was working fine till last night but since this morning it has been acting strange. i can see it on my taskbar, so it is running but it is simply not showing as a window. I restarted the wallet and it started but again I can see it on my taskbar and that's about it. It remains invisible. I downloaded the wallet on the 19th (the latest version from the PIVX site) and it was staking alright. Any help guys?
No guarantees, but that sounds like it could be a Windows issue. Sometimes Windows 'loses' windows offscreen, so they're technically open, just not anywhere visible. Try alt + spacebar with no other windows besides PIVX open or on the taskbar. If this is the problem, then that should open a menu allowing you to minimize/maximize/move the PIVX window. Either hit 'maximize' or move the window back onto the screen.
Again, no guarantees but worth a shot. Previous PIVX wallets have had occasional issues with recovering from a crash or other forced shutdown, but I've never heard of (nor personally experienced) the issue you describe.
EleanorZ-- you are right on the money with your instruction. Thank you very much. The issue has been resolved. I really appreciate your timely and wise input.