diff --git a/ViewTickets.md b/ViewTickets.md
index 5b1a436..db0a59e 100644
--- a/ViewTickets.md
+++ b/ViewTickets.md
@@ -63,6 +63,7 @@ See [ComponentDefinitions](ComponentDefinitions) for an explanation of what each
  * [newurls]query:status!=closed&keywords~=newurls ([count)](TicketQuery)(status!=closed&keywords~=newurls,): relevant to improvements in encoding caps as URLs
  * [firewall]query:status!=closed&keywords~=firewall ([count)](TicketQuery)(status!=closed&keywords~=firewall,): firewall and NAT traversal issues
  * [standards]query:status!=closed&keywords~=standards ([count)](TicketQuery)(status!=closed&keywords~=standards,): compliance to standards (HTTP, HTML etc.)
+ * [heisenbug]query:status!=closed&keywords~=heisenbug ([count)](TicketQuery)(status!=closed&keywords~=heisenbug,): bugs that are not easily reproducible so far
  * [no keywords]query:status!=closed&keywords= ([count)](TicketQuery)(status!=closed&keywords=,): open tickets with no keywords
 
 Combined queries:
@@ -75,6 +76,8 @@ Combined queries:
  * [unix]query:status!=closed&keywords~=unix ([count)](TicketQuery)(status!=closed&keywords~=unix,): all Unices
  * [debian]query:status!=closed&keywords~=debian ([count)](TicketQuery)(status!=closed&keywords~=debian,): Debian Linux
  * [ubuntu]query:status!=closed&keywords~=ubuntu ([count)](TicketQuery)(status!=closed&keywords~=ubuntu,): Ubuntu Linux
+ * [gentoo]query:status!=closed&keywords~=gentoo ([count)](TicketQuery)(status!=closed&keywords~=gentoo,): Gentoo Linux
+ * [centos]query:status!=closed&keywords~=centos ([count)](TicketQuery)(status!=closed&keywords~=centos,): CentOS Linux
  * [windows]query:status!=closed&keywords~=windows ([count)](TicketQuery)(status!=closed&keywords~=windows,): Windows (native or not compiler-specific)
  * [cygwin]query:status!=closed&keywords~=cygwin ([count)](TicketQuery)(status!=closed&keywords~=cygwin,): Windows using cygwin
  * [mac]query:status!=closed&keywords~=mac ([count)](TicketQuery)(status!=closed&keywords~=mac,): Mac OS X