I am so very frustrated with this program. I have been messing around with backup exec for 2 weeks now. I had Backup Exec installed on another machine and it constantly failed. I decided that there was a problem with our tape device. Well, I installed it on another machine. After I installed it it seemed to work fine. I was able to see an active running status. I come in the next day and an alert is on the screen telling me to insert media. I do that, thinking well maby I asked the software to backup to much data. Well I come in the next day and it tells me that the media was labled such and such. Then after I respond OK, it asks me to put in new media again. At this point I hit cancel. I figured out that something isn't right. I tried to retention a tape and it aborts. I tried to go into NT Backup (NT 4.0)and an error comes on the screen telling me that there is a problem with my tape device, to check the cables, etc. This is the second tape device that appears to be broken (Seagate, Tarvan). The device did work with NT Backup last week. The lights on the device come on when a tape is inserted. I am having a hard time figuring out why it would work one day and then report that it has something wrong the next! Any help that you may provide would greatly appreciated! Thank you in advance.