ListContentProvider exception

Hello,

I am using Eclipse 3.1 on Gentoo linux. When I try and add a new repository, I
type in the URL, then click the Browse... button next to the root url box,
which causes an exception (below).

Am I doing something wrong? I can't seem to get Subclipse to do anything.

-Josh

java.lang.NoClassDefFoundError:
org/eclipse/ui/internal/dialogs/ListContentProvider
        at
org.tigris.subversion.subclipse.ui.dialogs.ChooseRootUrlDialog.<init>(ChooseRootUrlDialog.java:52)
        at
org.tigris.subversion.subclipse.ui.wizards.ConfigurationWizardMainPage.openChooseRootDialog(ConfigurationWizardMainPage.java:292)
        at
org.tigris.subversion.subclipse.ui.wizards.ConfigurationWizardMainPage.access$3
(ConfigurationWizardMainPage.java:286)
        at
org.tigris.subversion.subclipse.ui.wizards.ConfigurationWizardMainPage$2.handleEvent(ConfigurationWizardMainPage.java:172)
        at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1021)

-- 
Joshua Pollak
Software Engineer
Kiva Systems