File (images) posting problems

[pete.collings]

I have tried to post two pics following the guidance above, but with no sucess. On hitting the "add the file" button, it swops to a blank page after showing some form of connection to the forum site. I have recently upgrades my version of Firefox, and had a few problems with some other sites (relating to certificates?), are these upgrades really helpful!?
Posting quick replies seems OK, it is only using the full edit reply system that gives problems.

[admin]

I can post any attachment size from Internet explorer
It looks like that is working..

However, on firefox I seem to hit a wall at attachment sizes over 150KB (139 works but 161 doesn't)....

We're investigating ...

[testaccount]

I'm trying a file now using Firefox 5

Test Image Brean Fortress

[testaccount]

Another image 467KB

Owl

[pete.collings]

Test posting in Firefox 4 of jpg < 150Mb, and a gif file (large)

early set of handlebars.doc

(19 KiB) Downloaded 260 times

[john.nash]

<split this topic away from the sticky general image posting FAQ>

Thanks Pete.

It's certain files (mainly jpgs) over a certain size that don't seem to work.
We don't know why, but it may or may not be browser dependant ..

Still investigating

cheers

[john.nash]

The problem is resizing to make the thumbnails.
We have to thumbnail as some of the images being posted, in terms of dimensions, are huge.
It appears that the software converts to bitmap, when actually performing the resize, which can temporarily result in a massive file. This overruns our 20MB limit.

We've had to limit posting to 800 pixels to over come this.

This limit doesn't affect other file types; just images