When booting from CD you need to press a key in given amount of time (when that progress barr appears) to actually boot from CD.
There is possibility that this is a hardware failure, maybe even preventing you to boot form CD, but it is hard to tell on given info.
Chaky
Postaholic
2,017 posts since May 2006
Reputation Points: 230
Solved Threads: 47
May be that the CD device is not working no more. Try unplugging the device and then boot normally.
Chaky
Postaholic
2,017 posts since May 2006
Reputation Points: 230
Solved Threads: 47