If you install Sql2005 and Reporting services for some reason Reporting services installs SQLExpress, now, the problem seems to be that if you install your database on the default instance, sqlexpress creates a (local)\sqlexpress instance. I  uninstalled that instance, but, it doesn't fully uninstall. There are lots of posts off people with similiar problems getting rid of sqlexpress. I can confirm it if I can get my trial extended -- but that is probably why there was an unusual error from StrataFrame. To help others with the same problebm uninstalling sql express, if you have the Windows 2003 resource kit installed you can run the following lines to forcefully uninstall it:

   1. Click on the Start menu, choose Run and type regedit
   2. Go to HKEY_LOCAL_MACHINE\Software\Microsoft\Microsoft SQL Server
   3. Remove SQLEXPRESS from the REG_MULTI_SZ value named InstalledInstances
   4. Delete the subhive named MSSQL.[1]   where [1] is where express is
   5. Delete the subhive named SQLEXPRESS
   6. Go to HKEY_LOCAL_MACHINE\Software\Microsoft\Microsoft SQL Server\Instance Names\SQL
   7. Delete the value named SQLEXPRESS
   8. Delete the folder %ProgramFiles%\Microsoft SQL Server\MSSQL.[1]
   9. Run MSIZAP  TAW! {2AFFFDD7-ED85-4A90-8C52-5DA9EBDC9B8F}  to totally get rid of any remaining cruft you can download msizap from msdn or if you have the Windows 2003 Server Resource kit, it is there alreay
  

Make sure MSSQL.[#] is correct or you will toast your main database!. If you are brave you can run

msiinv -p

look for the SQL Express product code and then

MSIEXEC /uinstall {product code guid} /qb

then run

MSIZAP  TGAW! {2AFFFDD7-ED85-4A90-8C52-5DA9EBDC9B8F}