diff --git a/config.go b/config.go
index c9c82b6..af1e681 100644
--- a/config.go
+++ b/config.go
@@ -41,7 +41,7 @@ func NewDefaultConfig() *Config {
 		LogXpra:         false,
 		EnvironmentVars: []string{
 			"USER", "USERNAME", "LOGNAME",
-			"LANG", "LANGUAGE", "_",
+			"LANG", "LANGUAGE", "_", "TZ=UTC",
 		},
 		DefaultGroups:   []string{
 			"audio", "video",
diff --git a/oz-daemon/daemon.go b/oz-daemon/daemon.go
index a5b00b8..ca9783e 100644
--- a/oz-daemon/daemon.go
+++ b/oz-daemon/daemon.go
@@ -260,6 +260,10 @@ func (d *daemonState) sanitizeEnvironment(p *oz.Profile, oldEnv []string) []stri
 	newEnv := []string{}
 
 	for _, EnvItem := range d.config.EnvironmentVars {
+		if strings.Contains(EnvItem, "=") {
+			newEnv = append(newEnv, EnvItem)
+			continue
+		}
 		for _, OldItem := range oldEnv {
 			if strings.HasPrefix(OldItem, EnvItem+"=") {
 				newEnv = append(newEnv, EnvItem+"="+strings.Replace(OldItem, EnvItem+"=", "", 1))
diff --git a/oz-init/init.go b/oz-init/init.go
index 5aeac63..0ec6131 100644
--- a/oz-init/init.go
+++ b/oz-init/init.go
@@ -545,6 +545,9 @@ func (st *initState) bindWhitelist(fsys *fs.Filesystem, wlist []oz.WhitelistItem
 		if wl.ReadOnly {
 			flags |= fs.BindReadOnly
 		}
+		if wl.Path == "" {
+			continue
+		}
 		if err := fsys.BindPath(wl.Path, flags, st.user); err != nil {
 			return err
 		}
@@ -557,6 +560,9 @@ func (st *initState) applyBlacklist(fsys *fs.Filesystem, blist []oz.BlacklistIte
 		return nil
 	}
 	for _, bl := range blist {
+		if bl.Path == "" {
+			continue
+		}
 		if err := fsys.BlacklistPath(bl.Path, st.user); err != nil {
 			return err
 		}
diff --git a/profile.go b/profile.go
index e991591..9fd3bc5 100644
--- a/profile.go
+++ b/profile.go
@@ -62,7 +62,7 @@ type XServerConf struct {
 	WindowIcon          string    `json:"window_icon"`
 	EnableTray          bool      `json:"enable_tray"`
 	EnableNotifications bool      `json:"enable_notifications"`
-	UsePulseAudio       bool      `json:"use_pulse_audio"`
+	UsePulseaudio       bool      `json:"use_pulseaudio"`
 	DisableClipboard    bool      `json:"disable_clipboard"`
 	AudioMode           AudioMode `json:"audio_mode"`
 }
@@ -124,7 +124,7 @@ func NewDefaultProfile() *Profile {
 			Enabled:             true,
 			EnableTray:          false,
 			EnableNotifications: false,
-			UsePulseAudio:       false,
+			UsePulseaudio:       false,
 			AudioMode:           PROFILE_AUDIO_NONE,
 		},
 	}
diff --git a/xpra/server.go b/xpra/server.go
index 0290adf..2e79408 100644
--- a/xpra/server.go
+++ b/xpra/server.go
@@ -10,7 +10,6 @@ import (
 var xpraServerDefaultArgs = []string{
 	"--no-mdns",
 	//"--pulseaudio",
-	"--no-pulseaudio",
 	"--input-method=keep",
 }
 
@@ -36,5 +35,10 @@ func prepareServerArgs(config *oz.XServerConf, display uint64, workdir string) [
 		"start",
 		fmt.Sprintf(":%d", display),
 	)
+	if config.UsePulseaudio {
+		args = append(args, "--pulseaudio")
+	} else {
+		args = append(args, "--no-pulseaudio")
+	}
 	return args
 }
diff --git a/xpra/xpra.go b/xpra/xpra.go
index 66b0f81..745c6ae 100644
--- a/xpra/xpra.go
+++ b/xpra/xpra.go
@@ -38,7 +38,6 @@ var xpraDefaultArgs = []string{
 	//"--no-xsettings",
 	"--cursors",
 	"--encoding=rgb",
-	"--no-pulseaudio",
 }
 
 func getDefaultArgs(config *oz.XServerConf) []string {