I went to test the vehicle on the PC, but the throttle was stuck at 10%. When I got home (today), I transferred the craft file onto my PC and fired up KSP. I tested it, tweaked it and everything was dandy. I spent the free time I had creating a new Apollo-style lander for my upcoming Mun missions.
I went away with work this week, so I installed KSP onto my laptop so I could cope with leaving my PC for a few days. So it's not a report, just asking if anyone else has had this. My KSP is not stock, but I cannot track a mod that might cause this issue. Firstly, usual thing of 'this might be in the wrong thread'.