8 gig RAM Win7 64 bit as you can see different tools say that 4gig are free, 1,8gig are used and rest is allocated by standby of the programs. task manager itself says that 2 processes of panotour pro allocated 8gig of ram. and panotour pro itself says that its using the (remaining) free memory of 150mb.
We think this is only a display problem. We notify the system we can allocate 4G (as shown in your system monitor), but only allocated when necessary (loading panoramas) not to block the system. However we will have a deeper look at it. Thanks for pointing that.