I've been having this exact problem and I cannot figure out why Action! would cause any issues with tablet drivers. It happens with both my Wacom Intuos3 and my Cintiq 22' HD.

I've found I can usually fix it by restarting my tablet service in Services.

They literally just emailed me like 20 minutes before this was approved.

Great timing lol!

I emailed the sales team 5 days ago for my lost serial number and haven't heard back from them since. I really need Action! for certain aspects of my job, so can anyone tell me how long it usually takes them to reply to you?