Check for updates brought up a notification regarding the recently updated Google Chrome - 13.0.782.215. Clicking 'next' started the update but eventually I got a nastygram regarding the install, saying that it failed and suggested I try again. I did and got the same thing. Trying on a second external USB drive gave the same result.
Manually downloading the file and installing worked fine.
I have the same problem as Bindlestiff.
The text from the error dialog box is below.
---------------------------
PortableApps.com Updater™
---------------------------
The downloaded copy of Google Chrome Portable is not valid and can not be installed. This could be due to an incomplete download or other network issue. Please try running the updater again when complete.
---------------------------
OK
---------------------------
cswilly, did you try installing manually and if so, did it work?
Tried again today and the updater is fixed. Thanks.