New to 727 Captain
FSX/Acceleration - very experienced

Is the following question appropriate for this forum - it says NO TECHNICAL SUPPORT - but what does that mean?

NAV/COMM RADIOS - I can tune all the radios to LOWER frequencies (I can lower the frequency) but I can't find any way to increase the frequency.  The radios do tune and I can communicate with ATC and get a VOR/DME - if the frequency is lower than 113.70/127.80 which is where the radios start at when I load the AC.  Once the frequency gets to 108.00 it will not move - it doesn't wrap around to 118.00 like most AC do.

The ADF tuning knob turns but ONLY to LOWER the frequency - I can find no way to raise the ADF frequency.  

These problems occur with Shift+3 (radio stack) or in the VC when I look down at the radio stack.  

I have dozens of payware and hundreds of shareware AC and have not previously encountered this problem.

What am I doing wrong?

1680x1050x32 22" LCD monitor.  
eVGA 8800 GTS(640MB) video card