I had same problem.
I uncheck one a time all of repositories and check for updates till i found one of not working. When i fixed it i added all back it works now...

My Application Manager hasn't been able to refresh the package list for about a week either. Did Nokia really screw up and not make it capable of dealing with one repository not answering?

It appears to be that way. I have the same problem, although most of the packages do update, regardless of what AM says. I seems to depend on where exactly the offending repository is in the list.

Nevertheless: crappy design. Why didn't Nokia just port Synaptic?

Ah ha! On another thread someone suggested checking the log in Application Manager, and that told me which repository was generating the error. Turns out that maemo.org.br (where evince is hosted) needed to be changed to www.maemo.org.br.

Now mine is working fine.

I've become frustrated with Opera and Wordpress and decided to try Minimo. Will not load from AM despite having the requisite libs in the same folder (Documents).

Here's the Log, hope for some help!

osso-application-installer 4.22, UI version 1
W: Couldn't stat source package list https://garage.maemo.org mistral/user Packages (/var/lib/apt/lists/garage.maemo.org_frs_download.php_129_maemo-bt-plugin%5f0.5.0-1%5farmel.deb_dists_mistral_user_binary-armel_Packages) - stat (2 No such file or directory)
W: Couldn't stat source package list http://home.ufam.edu.br mistral/user Packages (/var/lib/apt/lists/home.ufam.edu.br_%7eagan_minimo_binary-arm_dists_mistral_user_binary-armel_Packages) - stat (2 No such file or directory)
W: You may want to run apt-get update to correct these problems
E: The method driver /usr/lib/apt/methods/https could not be found.
/usr/bin/dpkg-deb -f '/home/user/MyDocs/.documents/libsm6_6.0.4-3osso1_armel.deb'
Package must have "Section: user/FOO" to be considered compatible.
FAILED: libice6 ( ) | xlibs (> 4.1.0)
/usr/bin/dpkg-deb -f '/home/user/MyDocs/.documents/minimo_0.16.5-2_armel.deb'
FAILED: libxt6
FAILED: libice6
FAILED: libsm6