I have installed C51 V7.00, µVision 2.30 under W98. My problem is: If I try to translate any 'C' file under µVision2 IDE it don't work (no translation is done.) Project Build, re-buld or 'A51' translation works properly. If I try to translate same 'C' files out of IDE, it works OK. Is there anyone who can advice or hint me. TIA Vaclav Korecek