I have checked into wisptis.exe and I know it's ok but it wants to install a global hook. I don't understand why and should I allow? It has never before. Of course this afternoon I downloaded the latest Windows updates. I have XP Pro. SP2. Maybe the updates had something to do with it.
I suggest scanning the file at Jotti's - http://virusscan.jotti.org Then allow, its meant to be Windows Ink Services Platform Tablet Input Subsystem (no, really) A quick search on www.google.com for that one, have a look