Can you give us an example of a plugin that you can't install? preferably with a link to a zip so I can try it and see.

¥

http://wonderwinds.com/hackblog.php/2008/01/moretags-plugin

I install the files to my plugins directory, but the plugin does not appear in my installed plugins list, or in the list of plugins I can install.

Hmmm, that's one I know definitely works as I recently installed it on a 2.3 blog.

Check the path to the plugins ( sometimes unzipping can lead to a double folder name ), it should look like :

/plugins/moretags_plugin/_moretags.plugin.php

¥

Once the files are uploaded, should the plugin appear in the list of plugins that can be installed?

The path you described is exactly the path I have.

Yes, you should be able to goto admin > global settings > plugins install : click "install new" ( top right ) and it should then be in the list.

¥

When I go there, there's nothing on the list.

Could you possibly pm me with login and ftp details so I can take a look?

¥

Ok, it looks like you have a memory limit problem ( that page never completes ).

Crack open conf/_advanced.php and change the following section of code and see if that makes it all work :

// If you get blank pages, PHP may be crashing because it doesn't have enough memory.
// The default is 8 MB (in PHP < 5.2) and 128 MB (in PHP > 5.2)
// Try uncommmenting the following line:
ini_set( 'memory_limit', '64M' );

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cslepage broke the 16M barrier!

Is that bad?

That's not bad. It' s a curiousity. You have quit some pictures and things on your page. That translate in the memory needed to generate your page. You' re record holder :lol:

I'm not actually *convinced* it's a memory problem as he has bugger all plugins installed, but always go for the easy option first ;)

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Unfortunately it did not fix the problem.

Ok, crack open /conf/_advanced.php and change this section of code ( or check your error logs ) and see if it spits anything out :

// To help debugging severe errors, you'll probably want PHP to display the errors on screen.
// In this case, uncomment the following line:
ini_set( 'display_errors', 'on' );

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It was already set to "on." Where would I see the error?

bugger, you should see it on that page or in your error log :-S

check just above that section of code, and make sure error_reporting() is enabled ( it should be by default )

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Now I'm getting an error on that page:

Parse error: syntax error, unexpected T_CLASS, expecting ',' or ';' in /home/comlist/public_html/b2etwotest/plugins/_glossysearch.plugin.php on line 34

This is line 34:

class glossysearch_plugin extends Plugin

ahah, that's a known problem, can't remember if it's be solved.

for now just rename it to _glossysearch.plugin.php.bak and see if your plugins page works

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I think that worked!

Yay, now we just need to cure the problem with glossysearch ;)

There's a thread in the [url=http://forums.b2evolution.net/viewtopic.php?t=13552]templates and skins[/url] forum for the skin.

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I was having the same issue; then I tried deleting the new plugins and uploading and installing them one at a time. That worked for me!
: )
Amy