I have an application running on our local server and it works perfect.

However when I deploy my application to our client's server there are problems. If i copy all the sources to another local from their server, it works fine again.... I am talking about an ASP.NET application talking with windows server 2008.

The server specs of our client are:

intel Xeon 2.13 GHz 6 GB RAM 300 GB HDD windows server 2008 R2

Although I think it's not that important

I will describe the problems I am talking about to give u a better idea:

It is related to upating and deleting fields in the sql server. Whenever there is more than one user running the application, and updates or deletes (not even the same record!0, there seems to be fields updating/deleting wrongly.

But as I said before, if we copy the source to another server it is not the case. So I assumed it is more configuration related. Do you guys have any idea what the issue could be?

Thanks a lot

EDIT: my client old me he disabled the sql related accounts

Could this be related?