I switched from PC to iMac last week . I am very excited by the performance of Mac OSX and display of the new 21.5" iMac. The only problem I face is that quicktime movies are not played in safari/firefox. Safari waits indefinitely for loading the quicktime movie , firefox shows a big 'Q ?'. Don't know what that means. This frustrating because I can't view any of the tutorial movies in the apple website. It is ironic that apple's own format is not playing on the new iMac. The OS is Mac OSX 10.6.2 . Flash is playing well in the same machine. I am new to mac . Please help.