4.0.1 crashed upon opening after a fresh install. Kept crashing every time I tried to start afterwards. I kept trying, and I somehow managed to click settings before the crash dialog appeared, and so here are the diagnostics that were copied:
Application paint.net 4.0.1 (Final 4.1.5306.43142)
Build Date Saturday, July 12, 2014
Hardware accelerated rendering (GPU) True
Animations True
DPI 96.00 (1.00x scale)
Language en-US
OS Windows 7 Service Pack 1 (6.1.7601.65536)
.NET Runtime 4.0.30319.18444
Physical Memory 5,982 MB
CPU IntelĀ® Core i7-3610QM CPU @ 2.30GHz
Architecture x64 (64-bit)
Process Mode 64-bit
Speed ~2294 MHz
Cores / Threads 8
Features DEP, SSE, SSE2, SSE3, SSSE3, SSE4_1, SSE4_2, XSAVE
Video Card IntelĀ® HD Graphics 4000
Dedicated Video RAM 128 MB
Dedicated System RAM 0 MB
Shared System RAM 1,632 MB
Vendor ID 0x8086
Device ID 0x0166
Subsystem ID 0x06471025
Revision 9
LUID 0x00008D15
Flags None
Outputs 2
Video Card NVIDIA GeForce GT 640M
Dedicated Video RAM 1,990 MB
Dedicated System RAM 0 MB
Shared System RAM 2,048 MB
Vendor ID 0x10DE
Device ID 0x0FD2
Subsystem ID 0x06481025
Revision 161
LUID 0x000097AF
Flags None
Outputs 0
Crash Logs folder was empty... Not sure why.