Crash on selling swords in weapon shop in brink

[Truthowl]

I had read the thread about merchant guidelines and was just finishing his 'Trade Route' loop. Stopped at the police first to see if a dead bandit leader (killed by someone else) would earn me anything, he didn't . Then went next door to the Weapon Merchant to begin selling the blades I picked up also. I have 6 guys, or rather 5 hirelings and all but 2 have tradesmen backpacks. I was/am carrying a few trade goods but wasn't selling those yet. Had just sold like 2 or 3 blades and on the next it crashed.

Here's a basic Speccy report on my system:

Operating System
MS Windows 7 Ultimate 64-bit
CPU
AMD Phenom II X6 1055T
Thuban 45nm Technology
RAM
4.0GB Dual-Channel DDR3 @ 669MHz (9-9-9-24)
Motherboard
Gigabyte Technology Co., Ltd. GA-880GA-UD3H (Socket M2)
Graphics
HD2201 (1680x1050@59Hz)
NVIDIA GeForce GT 240

Not sure what else to add so I'll shut up.