SEGA has said sorry to people having trouble activating Football Manager 2009 keys online, and is "confident that the issue will be solved today".
"SEGA is aware that there have been some problems with the activation of Football Manager 2009 today. This has been due to a combination of issues relating to the printing of keycodes and the huge demand for the game," reads a SEGA statement.
"A solution is in place and is starting to clear the problem, we are confident that the issue will be solved today. The chances of successful authentication are increasing hourly. At this point consumers still experiencing difficulties are advised to leave a 10 minute gap between authentication attempts.
"SEGA apologises for the disappointment caused by the problems with activating the game and asks for Football Manager fans to remain patient," adds SEGA.
Football Manager 2009 launches today on PC and PSP, and is the fullest, most complete instalment in the series. There are, however, some teething issues, but Sports Interactive is already rolling out patches to amend these.
Head over to our Football Manager 2009 review to find out more.