Terraria Error CLR20r3

[timaeusTestified]

Hi everyone, ever since the new winter patch I have some errors with the game. The error report is as follows (pops up whenever I try to launch the game):

Problem signature:
Problem Event Name: CLR20r3
Problem Signature 01: terraria.exe
Problem Signature 02: 1.2.1.1
Problem Signature 03: 52b35b2e
Problem Signature 04: Microsoft.Xna.Framework
Problem Signature 05: 4.0.20823.0
Problem Signature 06: 4c72cc22
Problem Signature 07: 280
Problem Signature 08: 32
Problem Signature 09: System.InvalidOperationException
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 2057
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

I tried searching the web, so I have tried out the following but it still wouldn't start:

1) Reinstalling Terraria
2) Reinstalling XNA & .NET, and Terraria

I'm not sure what to do, and would really like to start experimenting with the new patch. Thanks for all answers!

[Tygra]

Hi!
As i see you are using windows 7.Without and more information i have to ask you,what has changed between the start of the crashes and the last time you were able to play the game?
Before any other reinstalling and stuff maybe you whould try this.I saw that this solution fixed the problem for many many user.Hope this will fix it for you too:
http://www.howtogeek.com/forum/topic/problem-event-name-clr20r3

[timaeusTestified]

I tried a previous version of Terraria (hooray backups!) which WORKS! So it's possibly the new patch?