It really is a BETA version
Last night, I was anxious to try some stuff with the new VS 2005 Beta I installed recently. First step was to try and create a small database for my sample project. When I opened SQL Server Management Studio, I couldn't connect to my database server. SQL Server 2005 said something about "Data source name not found and no default driver specified". Fortunately, Patrick Wellink was online so I asked him if he had any problems. I knew he'd also installed the new Beta stuff. And as it happens, he did. He had also installed VS 2005 Team Suite and his installation was constantly nagging about a failing connection to Team Foundation Server.
We spent about an hour on the phone, discussing possible solutions. He then un-installed SQL server 2005 and then re-installed SQL server 2005. This didn't help with his connection problem. So he un-installed SQL server 2005 again and un-installed the VS 2005 Team Suite. He then installed SQL Server 2005 again and finally his database server was running correctly.
So went about it the same way. I spent a couple of hourse un-installing all the new Beta stuff. I then cleaned up any directories that were left behind. I then re-installed SQL Server 2005 and VS 2005 Team Suite, in that order. And now everything is working as I expected it to. It took me 4 hours in total to sort out this mess.