1st update or trying to register

i recently downloaded avast home ed. i have it working on my desktop,but when i try to load up on my laptop i get a failed registration error. i have a HP AMD Athlon™ XP2800+508 MHz with 448 MB RAM. When i try to register I get a ashUInt error with the message “The DDE transaction failed”. Can anyone help a somewhat average know-how computer user?Thanks ???

Usually, rebooting the computer clears up Internal Errors of this type.

But, can you search your harddisk for ashUInt.dll file and tell us if there are more occurences than just one inside avast! installation folder?