Maybe :)
I don't remember, now it's more that a year I don't reformat/reinstall my Pc...
I think you are right, it's must be the developer edition!

>>>SQL Server Enterprise and Standard editions (for SQL Server 2000 at least) will only run on Server OS's, ie, not Windows XP which is what most laptops run.
>>
>>Are you sure?
>>On my PC's I have XP, Win2000 Prof and sql server (standard edition) it has always run...
>
>http://www.microsoft.com/sql/evaluation/sysreqs/2000/default.asp
>
>Are you by chance using developer edition?