TIH 2010 Dates Backups Incorrectly

I have an issue that has appeared recently. I am using TIH 2010 and have done for a long time. The problem may have been there for a while but I have only noticed it ihn the last month.
I take either do a full partition backup, or a file backup of many files. I use the @date@ fu7nction.
So the backup location used is, for example: J:\Backups\Data_@date@.tib.
The backup is taken correctly and shows the correct date as the file name. Data_11_04_2011
However, when you click on the filename to expand it it shows a data stack which usually has the same name as the filename, now it does not. Now it has a name that is different (it is in the past) and it does not increment.
e.g. It shows Data_10_26_11.
My daily backup on 11-3-11 shows the same date on the stack as Data_10_26_11 so it is not incrementing.
Deleting the scheduled backup and recreating it does not fix anything.
I attach an example. You can see the filename in the box at the top, while the stack has a much earlier date.
Anybody got ideas?