Forge HQ card pictures not shown

I'm new to forge and these forum so please be gentle if this has been asked already, my search hasn't lead to an answer.
Anyway, my problem is the following.
I have downloaded HQ pictures for a lot of cards (I followed the instructions in the Forge Beta release info thread) and dumped them into /user/appdata/local/forge/cache/pics/cards. However, when I start Forge none of the card pictures are shown. The weird thing is, when I download LQ pictures via the Forge downloader they land in the exact same folder and are shown correctly ingame.
Thanks in advance
Anyway, my problem is the following.
I have downloaded HQ pictures for a lot of cards (I followed the instructions in the Forge Beta release info thread) and dumped them into /user/appdata/local/forge/cache/pics/cards. However, when I start Forge none of the card pictures are shown. The weird thing is, when I download LQ pictures via the Forge downloader they land in the exact same folder and are shown correctly ingame.
Thanks in advance