Ciao to all,I recently loose frame rates form allmost 20 to 5 suddenly when I fly...But never had frame rates problem, I haven't changed any settings...I've this problem since I took away the cpu fan for cleaning it from the dust from the MB.It seems that now,it goes up to 70% of it's speed while before It was going to 100%..So this loosing frame rates could it be caused from the fan that doesn't cool down enough the cpu???Or could be my used 8800gtx that it' breaking down?From the task manger i get max 30 % of cpu usage...while flying...I use 2 monitors and on the 2nd one i use to put the left side view of the left cockpit window...If i close that view i get the frame rates going over 20....Any suggestions???thanxxxxxxxxxxxxxxxINTEL Q6600 CORE 2 QUAD 3.00Ghz 8Mb DI CACHE - FSB 1066MhzAlimentatore 630W supersilentM.BOARD ASUS S775 P5K + gigalan Intel P35Front side bus 1333 Mhz 8800 GTX 760MbRAM 2Gb DDR2 833Mhz in dual channelHARD DISK MAXTOR DIAMOND 10 160Gb SATA2 3.00Gb/sec2 Monitors Samsung 214T 21,3"XP Pro 32 BitSP3FS2004nHancer 2.3.1TrackIR V 4.1.028 ProNVidia Drivers 163.75 737 and 747 PMDG777 and 757 PSSLevel-D 767ASVItaly pack

If you have huge stutters in all games, maybe the CPU is throttling back due to excessive heat. Try this utility ... http://www.techpowerup.com/realtemp/Did you put the fan back on the CPU with the correct orientation ... meaning is the fan blowing in the correct direction?Maybe it's time for a new fan.